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Youtube Fullscreen Mode

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As of 2025-09-14. See the latest version.

How to install

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

How to install

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

Author
ndaesik
Ratings
0 0 0
Version
2025.09.11
Created
2021-10-18
Updated
2025-09-14
Size
11 KB
License
N/A
Applies to

- Automatically set theater mode screen to 100% height and 100% width for optimal viewing.
- Enable wide mode as the default for all videos.
- Fully supports videos with live chat by dynamically adjusting for the live chat frame.
- scrollbar is hidden while in theater mode and scroll positioned top.